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Co-ordination test apparatus, Cambridge, England, 1942

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The Sensory Motor Apparatus (SMA-3) was an electro-mechanical test for measuring eye, hand and foot co-ordination. SMA-3 was one of many pilot aptitude tests given to aircrew candidates of the Fleet Air Arm, the Army Air Corps and the Royal Air Force. Designed by the University of Cambridge and the Central Medical Establishment during the Second World War, SMA-3 has seen service in many Air Forces. It was in continuous use in the UK between 1943 and 1985. The original machine was updated in the 1970s and finally replaced by a computerised version in 1985.